1.   How many acute angles are in the quadrilateral?
   
    A. 2 B. 3
    C. 1 D. 0
    Hint

  2.   How many acute angles are in the quadrilateral?
   
    A. 3 B. 1
    C. 2 D. 0
    Hint

  3.   How many obtuse angles are in the quadrilateral?
   
    A. 0 B. 1
    C. 3 D. 2
    Hint

  4.   How many obtuse angles are in the quadrilateral?
   
    A. 2 B. 3
    C. 1 D. 0
    Hint

  5.   How many obtuse angles are in the quadrilateral?
   
    A. 0 B. 3
    C. 2 D. 1
    Hint